Duplex pumping-engine.



PATENTED SEPT. a'. 1903,.

DUPLEX PUMPING ENGINE.

AB PL IOATION'IILED MAR. 12. 1903.

2 Bums-81mm 1v N0 MODEL;

No-738,589; PATENTED SEPT. s, 1903. E. P. WQRDEIL DUPLEX PUMPING ENGINE.

APPLICATION IILED MAB. 1'2, l9Q3.

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2 SHEETS-SHEET 2.

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is w o f 3 h m iatented September 8, 19053.

a UNITEDW STATES; PATENTWQEFICE.

EUCLID P. WORDEN, OF MILWAUKEE, WISCONSIN, ASSIGNOR TO FRED M.

PRESCOTT STEAM, PUMP COMPANY PORATION OF WISCONSIN.

DUPLEX PUMPING-ENGINE.

, OF MILWAUKEE, WISCONSIN, A COR- srncrrrcn'rroiv forming part of Letters Patent No. 738,589, dated September 8,1903.

Application filed March 12, 1903.

-T allwhom it may concern:

Be it known thafi I,"EUCLID P. WORDEN, a

citizen of the United States, residing atMilwaukee, in the county of Milwaukee and State of Wisconsin, have invented certain new and useful Improvements in Duplex Pumping-1 Engines, of which the following is a specification, reference being had to the accompanying drawings, forming a part thereof.

This invention relates particularly to ver tical duplex pumping engines' in which the engine-cylinders are arranged side by side above and in line with the pump-cylinders and the piston-rods are connected by a walk ing-beam by whicha like and synchronous movement thereof in oppositedirections is insured.

The main objects of the invention are to provide for and facilitate the removal of the upper pump-cylinder heads, whereby access is had to the pump plungers or pistons for packing, repairing, or inspecting the same without disturbing the adjustment of the guides for the cross-heads attached to the 2 5 piston-rods, and generally to improve the construction and operation of this gines.v

It consists in'certain novel features of construction and in the peculiar arrangement class of en- 7 and combinationsof parts hereinafter particularly described, and pointed out in the claims.

In the accompanying drawings like letters designate the same parts in the several fi gures.

Figure 1 is a side elevation of avertical duplex pumping-engine embodying the abovementioned invention. Fig. 2 is anend elevation of the same, and Figs. 3 and 4 are enlarged detail views of a portion of one of the cross-heads and one of the guides associated therewith, Fig. 3 being a plan view and horizental section and 4 being an end elevation of the cross-head and a side elevation'of the guide. 5 For the purpose of illustration the invention is shown as applied to a compound vertical air-pump designed for use in connection with a condenser, but it is applicable to other duplex vertical engines in which the two engine-cylin ders are arranged side by side above and remove the guides.

Serial No. 147,367. (No model.)

andin line with the pump-cylinders, and the readjustment of the guides every time the 6 5 pump plungers or pistons are packed, and even with the greatest care in replacing and adjusting the parts the cross-heads are very apt to bind or work imperfectly on the guides.

' With myiinproved construction these difficul- 7o ties and objections are obviated.

Referring to the accompanyingdrawings, a and b designate high and low pressure steamcylinders mounted vertically side by side on a horizontal bed-plate 0, above and in line with vertical pump-cylinders cl cl. The upper heads 6 e of the pump-cylinders are removable and aiford access to the pump plungers or pistons.

. f fare squared or rectangular guides,which are preferably turned down and threaded at their ends and secured by nuts at their upper ends in the bed-plate c and at their lower ends in lugs g g onopposite sides of the pumpcylinders outside of and independently of their removable upper heads 6.

h h are cross-heads attached by keys or other suitable means to and coupling the adjacent ends of the associated piston-rods h and i of the engine and pump-cylinders. The cross- 0 heads are formed with vertically-disposed rectangular recesses opening through their ends,

and in these recesses removable bearingpieces j j are adjustably fitted to the guides f. These bearing-pieces may be made, as shown 5 in Figs. 3 and 4, wedge-shaped or tapering lengthwise to take up wear and flanged or L- shaped crosswise to fit over the inner corners of the guides, and thus afford end-thrust bearings for the cross-heads. The bearing-pieces loo may be secured in place and adjusted in the cross-heads by means of screws 10 k,threaded in the cross-heads and having heads or collars engaging the ends of the bearing-pieces. The recesses in the ends of the cross-heads for the bearing-pieces are made of suffi cient depth to permit the cross-heads when they are detached from the piston-rods and the bearingpieces are removed to be tilted vertically out of engagement with the guides without disturbing the latter. The cross-heads are connected and like synchronous movement of the piston-rods in opposite directions is insured by a walking-beam, consisting in the present case of a horizontal rocker-shaft I, supported at its ends by bearings in uprights m m on opposite sides of theengine and provided with two levers n n, which are connected by links or stirrups 0 0 with the crossheads h h between the piston-rods and guidebars,

I The uprights m m are secured at their lower ends to the engine-frame or pump-cylinders between but independently of their removable heads e e, and they with the guides ff serve to carry the bed-plate c with the steam-cylinders and other mechanism mounted thereon.

It is obvious that with my improved construction and arrangement of parts as herein shown and described the heads e e of the pump cylinders may be detached and removed for the purpose of inspecting, packing, or repairing the pump plungers or pistons or for any other purpose and that the cross-heads maybe detached from the pistonrods and disengaged from the guide-bars without removing or detaching the guide-bars or disturbing their adjustment.

In place of the bed-plate c lugs or flanges may be formed on the engine-cylinders, or they may be provided with any suitable form of base for the attachment of the upper ends of the guides f and uprights m.

Various modifications in minor details of construction may be made within the scope of my invention.

I claim 1. In a vertical duplex pumping-engine in which the enginecylinders are arranged above and in line with the pump-cylinders, the upper heads of which are removable, the combination of cross-heads to which the piston-rods are attached, a walking-beam connecting said cross-heads, and guides for said cross-heads attached at their lower ends to opposite sides of the pump-cylinders outside and independently of their removable heads, substantially as described.

2. In a vertical duplex pumpingengine having the engine-cylinders arranged above and in line with the pump-cylinders, the upper heads of which are removable, the combination of cross-heads secured to the pistonrods between the engine and pump-cylinders, a walking-beam connected with each crosshead between its center and ends, and vertical guides attached at their lower ends to opposite sides of the pump-cylinders independently of their removable heads and at their upper ends to the base of I the engine-cylinders, substantially as described.

3. In a vertical duplex pumping-engine the combination with the engine-cylinders supported above and in line with the pump-cylinders, the upper heads of which are removable, of vertical guides secured at their upper ends to the engine-cylinders and at their lower ends to the pump-cylinders independently of their removable heads, cross-heads attached to the piston-rods and having open recessed ends and bearing-pieces removably fitted therein, the end recesses in said cross-heads being of sufficient depth to permit their removal from said guides without disturbing the latter, and a walking-beam connecting said cross-heads, substantially as described.

4. In a vertical duplex pumping-engine, the combination with the engine-cylinders arranged above and in line with the pump-cylinders which have removable upper heads, of rectangular guides secured at their upper ends to the engine-cylinders and at their lower ends to the pump-cylinders outside of their removable heads, cross-heads attached to and coupling the engine and pump piston-rods and EUCLID P. woRDEN.

Witnesses:

CHAS. L. Goss, ALIcE'E. Goss. 

